Instructions

Preheat oven to 200F. Line 2 cookie sheets with parchment paper.

Place chocolate in a food processor and pulse until finely ground.

Sift together powdered sugar and cocoa in a medium bowl.

Place egg whites, lemon juice and salt in the bowl of a mixer fitted with a whisk and beat until foamy. With mixer running, add granulated sugar, 1 tablespoon at a time. Increase speed to high and beat until stiff peaks form. Fold powdered sugar mixture and chocolate into egg whites until well combined.

Spoon batter into a disposable pastry bag fitted with a large star tip; pipe 1 tablespoon portions of batter on prepared cookie sheets, spacing 1-inch apart. (Or use a spoon to mound batter on pans.)